Drying-machine.



T. ALLSOP & W. W. SIBSON.

DRYING MACHINE. APPUCATION FILED APR. 1. 1915. .Patented Sept. 12,1916.

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DRYING MACHINE.

APPLICATION HLED'APR. 1. 1915.

Patented Sept. 12, 1916.

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DRYING MACHINE;

APPLICATION FILED APR. 1-. \915.

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UNITED STATES PATENT OFFICE.

THOMAS ALLSOP AND WALTER W. SIBSON, 0F PHILADELPHIA, PENNSYLVANIA,

ASSIGNORS TO THE PHILADELPHIA DRYING MACHINERY COMPANY, OF PHILA DELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA. I

DRYING-MACHINE.

Specification of Letters Patent.

Patented Sept. 12, 1916.

Application filedApril 1, 1915. Serial No. 18,538.

To all whom it may concern Be it known that we, THOMAS ALLsor an WALTER W. SIBSON, of Philadelphia, in the county of Philadelphia. and State of Pennthe material to be dried is carried by a suitable conveyer, a parallel compartment of the machine containing air drying means, while fans produce the required circulation between the two compartments.

Our invention relates to the novel shape of the roof and the position and mounting of the fans for accomplishing the air circulation.

It also relates to devices by which such a machine is largely constructed of inter changeable parts of standard dimensions.

It relates also to a peculiar construction of the panels and the method of securing them to the supporting framework.

It also relates to certain novel means for conveying objects to be dried through the machine.

is a cross section of a drying machine embodying our invention. Figs. II, III, IV and V, are detail views illustrating a carrier with adjustable tentering chains. Fig. VI, is an elevational view of Fig. I. Figs. -VII to XII, are detailed views showing the method of attachment of the panels to the framework in different parts of the machine.

The machine is'of indefinite length, depending upon the nature of the drying to be performed. It is accordingly constructed of similar sections which may be added to indefinitely.

In the accompanying drawings, Figure I,

frames, and to the flat inner side of the uprlght. The sides are united top and bottom by cross pleces 5, 5, of angle iron, which are unlted to the frames by angle braces 6, 6.

The roof is partially flat, resting on the cross pieces 5, 5, while a peaked portion 7, of the roof has its axis in the plane of a vertical fan partition 8, which divides the drying compartment 9, from the heating compartment 10. Within the heating compartment are mounted the steam coils 15, or slmilar'heating means. To form the peaked portion angle irons 12, are appropriately bent and have the lower ends of their inclined sides bolted to the cross-pieces 5, as seen in Fig. XI. The pitch of the sides of the peaked portion of the roof is equal on either side. The dimensions of the parts are such that one side of the peaked roof forms most of the top of the heating compartment, while the other side of the peaked roof, together with the flat roof, forms the tqp of the drying compartment, the extent 0 the flat roof depending upon the required width of the compartment.

The external walls are formed of panels which are made by combining two pieces of sheet iron with an intermediate layer of asbestos. The construction will be readily understood by examining Figs. VII and XII, from which it will be observed that each panel comprises a flat piece of sheet iron 20, and a dished piece of sheet iron 21, with inclined shoulders 23. The interspace thus formed is packed with asbestos. The flange of the dished portion is secured to the edgev of the flat portion by turning over the edges of the flat portion to form a firm flange of three thicknesses of sheet metal. In the ordinary panel this flange is in the plane of the flat plate of the panel, while for those panels which are to be employed for the sides of the peaked roof, the lower flange is bent at an appropriate angle, as shown in Figs. VII and XI.

The side panels are detachably secured to the uprights by means of panel catches 25, set upon bolts 26, secured to the uprights and screwed down by wing nuts 28, as shown in Fig. XII. For the roof, where the panels are less likely to be removed, they are secured by nuts with overlapping washers 19, as shown in Fig. X, or by bolting the longitudinal angle iron 29, down upon the-panel flanges, as shown in Figs. VIII and IX.

The lower edges of the panels which form the sides of the peaked roof, have their flanges bolted beneath the beams or channel irons 30, (see Figs. X and XI) which rest upon the flat portion of the roof and run longitudinally one along each side of the peaked portion of the roof. These beams 30, serve to support the bearings 31, in which rotate the shafts 32, which carry fans 33, set in openings in the fan partition, and

pulleys 34, by which the fans are driven by means of belts.

In the parts thus far described, it willbe observed that the side uprights and side panels are interchangeable throughout the machine, and that the panels for the fiat are driven are entirely out of reach of persons walking around the machine, or within the machine, and are entirely external to the walls of the machine, so that they are always accessible for oiling and there is no drip of oil Within the machine.

The channel irons 30, serve to collect all of the drip from the bearings.

There is an advantage in the provision of the peaked roof with sides of equal angle, for by making the angles of the proper pitch, the circulation of air within the ma chinemay then be accomplished with equal facility in either direction, and for some purposes it is desirable that circulation be in one direction and in othercases in the other, which is dependent only upon the way in which the fans are caused to rotate. The air may be drawn from the top of the drying compartment and driven down into the heating compartment, deflected by the side of the peaked roof over that compartment, and returned beneath the bottom of the fan partition (for it will be observed that in Fig. I, the lower edge 38, of this partition does not reach to the floor), or the fans may be rotated in the reverse direction, with a reversal of the circulation.

The drying compartment of the machine contains a double system of endless carriers which may be used either simultaneously or either one separately. The uppermost of these systems is adapted to carry flat fabrics under the tension of traveling adjustable tentering chains, while the lowermost of these systems is an endless carrier for other kinds of material. Referring to the uppermost system, two parallel chainways 40, and 41, are supported spaced in proper relation upon short uprights 42, which find support between the roof crosspieces 5, and horizontal angle irons 43, sup

ported between the partition and the wall of the drying. compartment. Opposite to these are two corresponding movable chainways 44 and 45, supported and spaced by the short uprights 46. The latter uprights are attached to sliding pieces 48, running 2 upon ways formed by the pieces 5, and 43.

The chain-ways are further held to the sliding pieces 48, by braces 49. At intervals large welded nuts 50, are attached to the next to the drying compartment. This shaft has upon it a hand wheel 59, by means of which it may be turned and by its turning a simultaneous shifting of the chain-' ways 44, and 45, is effected carrying them bodily away from or toward the companion chain-ways 42, and 43, thus varying the distance between them at will. Within these chain-ways run the endless chains 60, shown in Figs. 'II, III and IV. The chain-ways are slotted and upon each link there is formed a projection 61, upon which is at tached a plate 62, with tentering hooks 63, so that a fabric to be dried may be stretched between the tentering hooks and carried continuously at any desired tension from one end of the machine to the other. The

which one pair are seen in Fig. VI, being set upon the shaft 65, driven by a sprocket and chain connection from the shaft 68, to which reference will hereafter be made. the two sprockets on which these chains run, one of them (64, Fig. VI) is slidably mounted upon its shaft, by means of a feather 69, so that it may adjust its lateral position to correspond to the adjustment of the chain-way to which it corresponds.

The lower drying system-consists of an endless carrier 70, of a construction usual in machines of this character, carried by and running on sprocket wheels 71, 71, which at one end are carried by the shaft 68, driven by a Worm gear 72, driven by a worm 73, upon a vertical shaft 74, which is in turn driven through gearin from the shaft 76, which carries the. driving pulleys 77. I

It will be noted that the driving mechanism for the endless carriers is so connected thereto as to drive them both simultaneously. If the textiles to be dried by attachment to the tentering chains of the upper carrier have a width substantially less than that of the entire drying compartment, and do not carry too much moisture, it is quite possible, and frequently economical, to thus employ both carriers for simultaneous drying operations, in which case, for example, if the fan is driven so as to propel the heated air from the heating compartment to the top of the drying compartment, it first dries the fabrics stretched upon the tentering chains of the upper carrier, and thereafter passing around the same, dries the material upon the lower endless carrier. In many establishmentsthere is need or opportunity to dry; both material and fabrics, making the use of our construction very desirable and saving of heat.

Having thus described our invention, we claim:

1. In a drying machine, the combination of a drying compartment and a heating compartment, separated by a partition, a peaked roof with its axis in the plane of the partition, one slope of the roof being over the heating compartment and the other slope of the roof being over the drying compartment.

2. In a drying machine, the combination of a drying compartment and a heating compartment, separated by a partition, a peaked roof with its axis in the plane of the partition and with sides of equal pitch, one side of the roof being over the heating compartment and the other side of the roof being over the drying compartment.

3. In a drying machine having heating and drying compartments separated by a partition, a roof partially flat and partially peaked, the axis of the peaked portion lying in the plane of the partition, and a fan shaft passing through the peaked portion with bearings exterior thereto resting onfiat por tions of the roof.

4. In a drying machine, the combination of a rectangular metal framework, drying and heating compartments separated by a fan partition, in longitudinal relation to the machine, beams running longitudinally of the machine resting upon the top of the rectangular framework, a peaked roof supported by the rectangular framework between said beams with its axis in the plane of the fan partition, bearings supported in pairs by said beams, shafts carried by said bearings and passing through the fan partition and both sides of the eaked roof, and a fan carried by each shaft 1n the plane of the fan partition.

5. In a' drying machine, the combination of a rectangular frame divided by a fan partition into heating and drying compartments, two endless carriers mounted one above the other in said drying compartment, one of said endless carriers comprising chain-ways with endless chains provided with tentering hooks for stretching fabric therebetween, and means for simultaneously effecting continuous rotation of both endless carriers.

6. In a drying machine, the combination of a rectangular frame divided by a fan partition into heating and drying compartments, two endless carriers mounted one above the other in said drying compartment, means for efiecting rotation of both endless carriers, and a fan mounted in said parti- -tion, whereby heated air may be propelled from the heating compartment into either the upper or lower part of the drying compartment.

7. In a drying machine, the combination of a rectangular frame divided by a fan partition into heating and drying compartments, two endless carriers mounted one above the other in said drying compartment, the upper end of said endless carriers comprising chain-ways with endless chains v provided with tentering hooks for stretching fabric thereon, means for varying the distance between chain ways and means for simultaneously effecting continuous rotation of both endless carriers.

8. In a drying machine having heating and drying compartments separated by a partition, a roof partially flat" and partially peaked, the axis of the peaked portion lying in the plane of the partition, channel irons mounted on the flat portions of the roof, and

a fan shaft passing through the peaked portion with bearings mounted on said channel irons, whereby'the drip from the bearings is collected by the channel irons.

In testimony whereof, we have hereunto signed our names at Philadelphia, Pennsylvania, this thirtieth day of March, 1915.

THOMAS ALLSOP. WALTER W. SIBSON.

Witnesses:

J AMES H. BELL, E. L. FULLERTON. 

